/**
 * CineWorld Design System
 * Professional design foundation with color scales, typography, spacing
 * Grade Target: 9/10
 */

/* ========================================
   COLOR SYSTEM - Professional Scale
   ======================================== */

:root {
    /* GOLD SCALE (Primary Brand) */
    --gold-50:  #FFF9E6;
    --gold-100: #FFE7B3;
    --gold-200: #FFD780;
    --gold-300: #FFC94D;
    --gold-400: #E8B923;
    --gold-500: #D4AF37;    /* Primary */
    --gold-600: #B8960B;
    --gold-700: #9A7D00;
    --gold-800: #7A6300;
    --gold-900: #5C4A00;
    
    /* GRAY SCALE (Neutrals) */
    --gray-50:  #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-300: #D1D5DB;
    --gray-400: #9CA3AF;
    --gray-500: #6B7280;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;
    --gray-900: #111827;
    --gray-950: #030712;
    
    /* SEMANTIC COLORS */
    --success:  #10B981;
    --error:    #EF4444;
    --warning:  #F59E0B;
    --info:     #3B82F6;
    
    /* ACCENT COLORS (Film Industry) */
    --accent-red:    #DC2626;  /* Premiere carpet */
    --accent-cyan:   #00D9FF;  /* Film reels */
    --accent-purple: #8B5CF6;  /* Creativity */
    
    /* BACKGROUND SYSTEM */
    --bg-primary:   #0A0A0A;
    --bg-secondary: #141414;
    --bg-tertiary:  #1F1F1F;
    --bg-elevated:  #2A2A2A;
    --bg-overlay:   rgba(0, 0, 0, 0.8);
    --bg-glass:     rgba(26, 26, 26, 0.7);
    
    /* TEXT SYSTEM */
    --text-primary:   #FFFFFF;
    --text-secondary: #E0E0E0;
    --text-tertiary:  #A0A0A0;
    --text-disabled:  #6B7280;
    --text-inverse:   #0A0A0A;
    
    /* BORDER SYSTEM */
    --border-subtle:  rgba(255, 255, 255, 0.05);
    --border-default: rgba(255, 255, 255, 0.1);
    --border-strong:  rgba(255, 255, 255, 0.2);
    --border-gold:    rgba(212, 175, 55, 0.3);
}

/* ========================================
   TYPOGRAPHY SYSTEM
   ======================================== */

:root {
    /* FONT FAMILIES */
    --font-display: 'Montserrat', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body:    'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono:    'JetBrains Mono', 'Courier New', monospace;
    
    /* FONT SIZES (Type Scale) */
    --text-xs:   0.75rem;   /* 12px */
    --text-sm:   0.875rem;  /* 14px */
    --text-base: 1rem;      /* 16px */
    --text-lg:   1.125rem;  /* 18px */
    --text-xl:   1.25rem;   /* 20px */
    --text-2xl:  1.5rem;    /* 24px */
    --text-3xl:  1.875rem;  /* 30px */
    --text-4xl:  2.25rem;   /* 36px */
    --text-5xl:  3rem;      /* 48px */
    --text-6xl:  3.75rem;   /* 60px */
    --text-7xl:  4.5rem;    /* 72px */
    --text-8xl:  6rem;      /* 96px */
    
    /* LINE HEIGHTS */
    --leading-none:    1;
    --leading-tight:   1.25;
    --leading-snug:    1.375;
    --leading-normal:  1.5;
    --leading-relaxed: 1.625;
    --leading-loose:   2;
    
    /* FONT WEIGHTS */
    --font-light:     300;
    --font-regular:   400;
    --font-medium:    500;
    --font-semibold:  600;
    --font-bold:      700;
    --font-extrabold: 800;
    --font-black:     900;
    
    /* LETTER SPACING */
    --tracking-tighter: -0.05em;
    --tracking-tight:   -0.025em;
    --tracking-normal:  0;
    --tracking-wide:    0.025em;
    --tracking-wider:   0.05em;
    --tracking-widest:  0.1em;
}

/* ========================================
   SPACING SYSTEM (8px base)
   ======================================== */

:root {
    --space-0:  0;
    --space-1:  0.25rem;  /* 4px */
    --space-2:  0.5rem;   /* 8px */
    --space-3:  0.75rem;  /* 12px */
    --space-4:  1rem;     /* 16px */
    --space-5:  1.25rem;  /* 20px */
    --space-6:  1.5rem;   /* 24px */
    --space-8:  2rem;     /* 32px */
    --space-10: 2.5rem;   /* 40px */
    --space-12: 3rem;     /* 48px */
    --space-16: 4rem;     /* 64px */
    --space-20: 5rem;     /* 80px */
    --space-24: 6rem;     /* 96px */
    --space-32: 8rem;     /* 128px */
}

/* ========================================
   ELEVATION SYSTEM (Shadows)
   ======================================== */

:root {
    --shadow-xs:  0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-sm:  0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
    --shadow-md:  0 4px 6px rgba(0, 0, 0, 0.15), 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-lg:  0 10px 15px rgba(0, 0, 0, 0.2), 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-xl:  0 20px 25px rgba(0, 0, 0, 0.25), 0 10px 10px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px rgba(0, 0, 0, 0.3);
    
    /* GOLD GLOW SHADOWS */
    --shadow-gold-sm: 0 0 10px rgba(212, 175, 55, 0.2);
    --shadow-gold-md: 0 0 20px rgba(212, 175, 55, 0.3);
    --shadow-gold-lg: 0 0 30px rgba(212, 175, 55, 0.4);
}

/* ========================================
   BORDER RADIUS
   ======================================== */

:root {
    --radius-none: 0;
    --radius-sm:   0.25rem;  /* 4px */
    --radius-md:   0.5rem;   /* 8px */
    --radius-lg:   0.75rem;  /* 12px */
    --radius-xl:   1rem;     /* 16px */
    --radius-2xl:  1.5rem;   /* 24px */
    --radius-full: 9999px;
}

/* ========================================
   TRANSITIONS
   ======================================== */

:root {
    --transition-fast:   150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base:   200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-medium: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow:   500ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========================================
   BASE STYLES
   ======================================== */

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    font-weight: var(--font-regular);
    line-height: var(--leading-relaxed);
    color: var(--text-secondary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ========================================
   TYPOGRAPHY CLASSES
   ======================================== */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: var(--font-bold);
    line-height: var(--leading-tight);
    color: var(--text-primary);
    margin: 0;
}

h1 {
    font-size: clamp(var(--text-4xl), 5vw, var(--text-6xl));
    font-weight: var(--font-black);
    letter-spacing: var(--tracking-tighter);
}

h2 {
    font-size: clamp(var(--text-3xl), 4vw, var(--text-5xl));
    font-weight: var(--font-extrabold);
}

h3 {
    font-size: clamp(var(--text-2xl), 3vw, var(--text-4xl));
    font-weight: var(--font-bold);
}

h4 {
    font-size: var(--text-2xl);
    font-weight: var(--font-semibold);
}

h5 {
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
}

h6 {
    font-size: var(--text-lg);
    font-weight: var(--font-medium);
}

p {
    margin: 0 0 var(--space-4);
    line-height: var(--leading-relaxed);
}

/* ========================================
   GRADIENT TEXT EFFECT
   ======================================== */

.gradient-text {
    background: linear-gradient(135deg, var(--gold-400), var(--gold-600));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.gradient-text-animated {
    /* Normal Gold Inner Color */
    color: #d4af37 !important;
    font-weight: 900 !important;
    
    /* Ensure proper rendering */
    position: relative;
    display: inline-block;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    letter-spacing: 0.02em;
    
    /* Remove any interfering styles */
    -webkit-text-stroke: 0;
    -webkit-text-fill-color: #d4af37;
    background: none;
    
    /* Subtle glow animation */
    animation: goldenGlow 3s ease-in-out infinite;
}

@keyframes goldenGlow {
    0%, 100% { 
        filter: brightness(1) drop-shadow(0 0 5px rgba(212, 175, 55, 0.2));
    }
    50% { 
        filter: brightness(1.05) drop-shadow(0 0 8px rgba(212, 175, 55, 0.3));
    }
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

/* ========================================
   BUTTON SYSTEM
   ======================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-family: var(--font-body);
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    line-height: var(--leading-normal);
    text-decoration: none;
    border-radius: var(--radius-lg);
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
    user-select: none;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* Button Variants */
.btn-primary {
    background: linear-gradient(135deg, var(--gold-400), var(--gold-600));
    color: var(--text-inverse);
    box-shadow: var(--shadow-gold-sm);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--gold-300), var(--gold-500));
    box-shadow: var(--shadow-gold-md);
    transform: translateY(-2px);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: transparent;
    border: 2px solid var(--gold-500);
    color: var(--gold-500);
}

.btn-secondary:hover {
    background: var(--gold-500);
    color: var(--text-inverse);
    box-shadow: var(--shadow-gold-sm);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
}

.btn-ghost:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

/* Button Sizes */
.btn-sm {
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
}

.btn-lg {
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-lg);
}

.btn-xl {
    padding: var(--space-5) var(--space-10);
    font-size: var(--text-xl);
}

/* ========================================
   CARD SYSTEM
   ======================================== */

.card {
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    border: 1px solid var(--border-subtle);
    transition: all var(--transition-medium);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--border-gold);
}

/* Card with gradient border */
.card-gradient {
    position: relative;
    background: var(--bg-secondary);
    border: none;
}

.card-gradient::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-xl);
    padding: 2px;
    background: linear-gradient(135deg, var(--gold-500), var(--gold-700));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
}

/* Glassmorphism Card */
.card-glass {
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border-default);
    box-shadow: var(--shadow-lg);
}

.card-glass:hover {
    background: rgba(26, 26, 26, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--shadow-2xl);
}

/* ========================================
   CONTAINER SYSTEM
   ======================================== */

.container {
    width: 100%;
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--space-4);
    padding-right: var(--space-4);
}

@media (min-width: 640px) {
    .container {
        max-width: 640px;
        padding-left: var(--space-6);
        padding-right: var(--space-6);
    }
}

@media (min-width: 768px) {
    .container {
        max-width: 768px;
    }
}

@media (min-width: 1024px) {
    .container {
        max-width: 1024px;
        padding-left: var(--space-8);
        padding-right: var(--space-8);
    }
}

@media (min-width: 1280px) {
    .container {
        max-width: 1280px;
    }
}

@media (min-width: 1536px) {
    .container {
        max-width: 1536px;
    }
}

/* ========================================
   SECTION SYSTEM
   ======================================== */

.section {
    padding-top: var(--space-16);
    padding-bottom: var(--space-16);
}

.section-sm {
    padding-top: var(--space-12);
    padding-bottom: var(--space-12);
}

.section-lg {
    padding-top: var(--space-24);
    padding-bottom: var(--space-24);
}

@media (min-width: 768px) {
    .section {
        padding-top: var(--space-20);
        padding-bottom: var(--space-20);
    }
    
    .section-lg {
        padding-top: var(--space-32);
        padding-bottom: var(--space-32);
    }
}

/* ========================================
   UTILITY CLASSES
   ======================================== */

/* Text Colors */
.text-primary { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.text-tertiary { color: var(--text-tertiary); }
.text-gold { color: var(--gold-500); }
.text-success { color: var(--success); }
.text-error { color: var(--error); }
.text-warning { color: var(--warning); }

/* Background Colors */
.bg-primary { background-color: var(--bg-primary); }
.bg-secondary { background-color: var(--bg-secondary); }
.bg-tertiary { background-color: var(--bg-tertiary); }

/* Shadows */
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-xl { box-shadow: var(--shadow-xl); }
.shadow-gold { box-shadow: var(--shadow-gold-md); }

/* ========================================
   RESPONSIVE UTILITIES
   ======================================== */

@media (max-width: 767px) {
    .hidden-mobile { display: none !important; }
}

@media (min-width: 768px) {
    .hidden-desktop { display: none !important; }
}

/* Touch targets (44x44px minimum) */
@media (max-width: 1023px) {
    .btn,
    .nav-link,
    button,
    a.btn {
        min-height: 44px;
        min-width: 44px;
    }
}